Starting with Clover, in Chapter 1 or 2 it was implied that Clover was mauled by one of the Foggel friends, that being Follower, Waiter and Greeter, however to specify which one they were mauled by follower, as nowhere in the story did I imply that the puppet flew or went back into a door way, implying that it was Follower, then Follower attempted to kill Kenzie, to which Kenzie killed it

Theo in Chapter 4 will die, Theo despite being the most tough between him and Kenzie, would not die by being stuffed into a suit or springlocks, as much as I want to do that, rather they'll be killed by the animatronic and proceed to Posses it to then kill Kenzie or attempt to because Kenzie is a badass, Theo's only reasoning would be that Kenzie isn't wearing a suit.

Abeille in Chapter 10 will die due to as they quote "A fucking scarecrow chased me down in the middle of the night," with the note that they have fresh food every night at around 12 AM, Abeille's death would be a graphic one, therefore I'm not gonna go into detail about it, wait until Chapter 10.

Regan dies in Chapter 15, not gonna explain how, I'll let you guess :)

Kaide will be revealed in Chapter 15, and he kills a certain someone (^ ^ ^), Kaide's death will be reveal in Chapter 21, he died in around 1988 Kaide was simply visiting an Ikea, unknowing of someone that has a score to settle with him there, thus his face saying "LEAVE" or "GET OUT" on it referring to the employees in SCP-3008, needing you to get the fuck out and to leave, however with no note of where the exit is, he had jumped off one of the balconies on there or railings (whatever the fuck it is), and fell to his death leading for him to act like a 3008 employee, I think you can tell who Kaide kills by the Chapter 15